{"id":56694,"slug":"28669-bradhelsel","name":"28669 Bradhelsel","domain":"solar-system","class":"asteroid","otype":null,"otype_label":"Asteroid","ra":null,"dec":null,"coo_err_mas":null,"coo_bibcode":null,"plx_mas":null,"pmra":null,"pmdec":null,"rv_kms":null,"redshift":null,"dist_pc":null,"vmag":null,"bmag":null,"gmag":null,"jmag":null,"kmag":null,"sp_type":null,"morph_type":null,"size_maj":null,"size_min":null,"size_angle":null,"nbref":0,"simbad_oid":null,"gaia_dr3":null,"jpl_spkid":20028669,"ned_name":null,"exo_name":null,"host_object_id":null,"depth":0,"deep_at":null,"views":2,"first_seen":"2026-08-14T16:44:29.897360+00:00","updated_at":"2026-08-14T17:22:17.097108+00:00","identifiers":["28669","28669 Bradhelsel","28669 Bradhelsel (2000 GG55)","Bradhelsel"],"measurements":[],"orbit":{"object_id":56694,"epoch_jd":2461200.5,"a_au":2.215,"e":0.083,"i_deg":2.78,"om_deg":204.01,"w_deg":339.29,"ma_deg":356.25,"q_au":2.031,"ad_au":2.4,"period_d":1200.0,"moid_au":1.03,"orbit_class":"MBA","neo":false,"pha":false,"h_mag":16.28,"diameter_km":1.626,"albedo":0.202,"rot_period_h":null,"spec_b":null,"spec_t":null,"condition_code":"0","n_obs":1925,"arc_days":13164,"first_obs":"1990-03-27","last_obs":"2026-04-11","producer":"Otto Matic","source":"jpl-sbdb","updated_at":"2026-08-14T17:22:17.097108+00:00"},"exoplanet":null,"sources":[]}